Materials Data on K2ZnH4 by Materials Project
K2ZnH4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 5-coordinate geometry to five H1- atoms. There are a spread of K–H bond distances ranging from 2.83–2.98 Å. In the second K1+ site, K1+ is bonded in a 7-coordinate geometry to seven H1- atoms. There are a spread of K–H bond distances ranging from 2.75–2.86 Å. Zn2+ is bonded in a tetrahedral geometry to four H1- atoms. There are a spread of Zn–H bond distances ranging from 1.65–1.67 Å. There are three inequivalent H1- sites. In the first H1- site, H1- is bonded in a distorted single-bond geometry to three K1+ and one Zn2+ atom. In the second H1- site, H1- is bonded in a distorted single-bond geometry to two K1+ and one Zn2+ atom. In the third H1- site, H1- is bonded in a distorted single-bond geometry to four K1+ and one Zn2+ atom.